A year after John and Geraldine Magee were found shot to death in their Andover home, Essex District Attorney Jonathan Blodgett and Andover Police Chief Brian Pattullo are asking the public for help in solving the murders. “We are asking anyone who has any information no matter how seemingly insignificant to please contact us,” Blodgett said in a statement Saturday. Tipsters can contact his office at 978-745-8908 or the Andover Police Anonymous Tip Line at 978-470-3864. The couple was found dead last Dec. 14, and the previous night, their Lexus SUV was found burning on Prince Street in Boston.